28 September 2017 11:44:59

IBM plans on supporting OS X High Sierra by October 25th, 30 days after High Sierra General Availability. We are currently testing and working on one known install issue covered under the Known Issues section of this document.

In the meantime, customers running IBM Notes 9.0.1 64-bit Interim Fix 11 can open PMRs to report any issues. IBM recommends applying the latest Fix Pack and Interim Fix available to benefit from the latest features and enhancements.

Q2. Are there any install issues specific to APFS?

Yes, there is an issue with install listed below that can occur on APFS file systems. Macs with SSD drives will be converted to APFS upon upgrading to OS X High Sierra; there is no option to prevent this. If Notes 9.0.1 64-bit is installed before the upgrade, things will be fine. However, the first attempt to install Notes on a clean machine with APFS after upgrading to macOS High Sierra can result in install failure with the below error message. The second install attempt will succeed. So to work around the issue, you must run the installer a second time. (SPR HPXGAR67YY) "File /Applications/Notes.app/Contents/MacOS/rcp/rcplauncher not found. Provisioning process failed to launch or was terminated before status could be determined."